baber/WOPTO huggingface dataset:
Patent GB-219737-A (GB)
Title: Apparatus for taking and projecting photographs in natural colours
IPC: G02B27/12
Filed: 1923-04-30
Abstract: 219,737. Cox,H.M. April 30, 1923. Colour photography. - Apparatus for taking or projecting images in natural colours comprises an objective, and means located in the front principal focal plane thereof for decomposing a single picture into several symmetrically arranged images, or for combining several such images into a single image. The apparatus shown comprises an objective 2, connected by bellows 7 to a holder for a focusing- screen 5 and sensitized member 6, or for a transparency to be projected, and mounted in the rear end of a member 3 which carries at its front end, at the front principal focus of the objective, a prism combination 4 and colour filter 24. The prism combination, which is shown in front elevation in Fig. 2, has four inclined faces 8 - - 11 meeting in a. point 25 on the optical axis of the apparatus, and is designed to produce in the image plane 5, 6 four symmetrically-disposed images 13 - - 16 of equal size of an object 12; or conversely to produce on a screen placed at 12 a single image from a four-image transparency of the same kind, situated in the plane 5, 6. The filter 24 comprises four areas each corresponding to one face of the prism, which are coloured to yield four component colour negatives and are so balanced that, when photographing a white object, four images of equal intensity are produced. The apparatus may be used for viewing a transparency, made from a negative produced in the apparatus, if a suitable filter 24 is inserted, or if the partial images are given suitable exposures in printing, as by printing through a screen obtained by photographing a uniformly white surface with the apparatus. A masking- screen having transparent portions and opaque portions may be introduced in front of or behind the prism to prevent overlapping of the images, or a tapering hood having horizontal and vertical partitions may be placed on the front of the member 3. A modified apparatus is described in which the prism combination is replaced by a mirror system.
Patent GB-1103322-A (GB)
Title: Aging of aluminum base alloys
IPC: C22F1/057
Filed: 1965-03-18
Abstract: Heat-treatable aluminium alloys are given an improved resistance to inter-granular corrosion by subjecting them after solution treatment to a two-stage ageing treatment, the first stage being at a higher, and the second stage at a lower, temperature. The alloy may be cooled directly from the upper to the lower temperature, or may be intermediately cooled to ambient temperature. General temperature ranges disclosed are 325 DEG -475 DEG F. for the first stage, occupying 10-50% of the total ageing time, and 200 DEG -350 DEG F. for the second stage, but particular ranges for the different classes of alloys are also given.
Patent GB-196940-A (GB)
Title: Fountain pens
IPC: B43K5/04
Filed: 1923-04-30
Abstract: 196,940. Wahl C., (Assignees of Tefft, I. D.). May 1, 1922, [Convention date]. Reservoir pens.-In a self-filling reservoir pen of the type in which a collapsable sac 7 is compressed by a lever-actuated presser-bar 16. the lever is pivoted in a slot in the barrel by resilient means mounted in conjunction with the lever. The barrel 1, which is preferably formed of metal, is provided with a slot 2, the walls of which are formed with flanges 3, 4 pressed downwards into the barrel. The flanges 3 co-operat.e with flanges 13 formed on the lever 12 to hold the latter in closed position. The lever is pivoted between the flanges 4 by means of a U-shaped spring wire 17 having outwardly-bent ends which engage in aligned apertures in the flanges and sides of the lever.
Patent GB-114386-A (GB)
Title: Improvements in and relating to Locks.
IPC: E05C1/06
Filed: 1917-08-14
Abstract: 114,386. Fenn, A. G., and Guthrie & Co. Aug. 14, 1917. Locks, revolving - barrel; keys.-In a lock of the type in which the key is provided with an expansible member by which it is adapted to be connected frictionally to a rotary barrel, the barrel must be moved laterally before it can be rotated to operate the bolt. The key, Fig. 5, comprises a cylindrical member 13 working in a sleeve member 14, and an expansible member in the form of a split ring 21, Fig. 7, disposed between a collar 22 and a flange 23 on the sleeve member, the members 13, 14 being provided with handles 13<a>, 14<a> respectively. In operation, the key is inserted into a recess 5, Fig. 2, in the barrel 4, and the handles are pressed together, thereby rotating a cylinder 19 mounted in the sleeve 14 and forcing open the ends of the ring 21, so as to place the key into frictional engagement with the barrel; one end of the cylinder 19 is elliptical in cross-section and engages between the ends of the ring, and a pin 18 on the cylinder 19 engages in a slot 17 in the member 13. The barrel 4 is first pulled forward against the action of a spring 8 to withdraw a projection 9 clear of a recess 10 in the casing 1<a>, and is then rotated to operate the bolt, projections on the barrel co-operating with teeth on the bolt. In the arrangement shown in Fig. 15, the cylinder 19 is dispensed with, the member 13 being provided with a cam disk 13b co-operating with balls 13<c> contained in pockets 13d in a part 13<e> secured to the member 14, the balls serving to press the ring outwardly into engagement with the barrel.
Patent GB-329473-A (GB)
Title: Sluice valve construction
IPC: F16K31/363
Filed: 1930-01-14
Abstract: 329,473. Glenfield & Kennedy, Ltd., and Ball, E. B. Jan. 14, 1930. Fluid-actuated valves; closure members, piston.-A sluice valve for semi - liquids or siltcarrying liquids of the type comprising a piston valve or gate F, Fig. 1, operated by hydraulic pressure admitted to the ends of a cylinder E, the gate F presenting an eye F<1> adapted, in the open position, to register with a straight-through passageway, is characterized by a controlling valve device settable to admit pressure to either end of the cylinder E, at the same time connecting the .other end to exhaust. The controlling device preferably takes the form of a four-way cock J, Fig. 4, connected by pipes H<3>, H<4> to both ends of the cylinder E, by pipe J<1> to the conduit E<3> on the inlet side E<1> of the valve or to an independent pressure supply, and by pipe J<2> to exhaust. Packing rings L<1>, K<1>, Fig. 1, are provided on the outlet side E<2> of the through passage and in the piston near its ends, respectively, the packing grooves having passages at M and K<2> respectively to admit pressure to the inner faces of the packing rings to ensure fluid tightness. A groove O in the piston F slidably engages a block P in the cylinder E and prevents rotation of the piston valve.
Patent GB-1374864-A (GB)
Title: Refractory structure particularly for a metallurgical shaft furnace
IPC: F27D1/04
Filed: 1972-03-14
Abstract: 1374864 Hearths KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 14 March 1972 [15 March 1971] 11789/72 Heading F4B A refractory hearth structure for a shaft furnace, formed of carbon blocks, is characterized in that at least in one of the layers of blocks, at least some of the blocks are arranged with open expansion joints between adjacent blocks. The width of the joints in cold condition corresponds to the thermal expansion of the adjacent refractory blocks into said joints over a temperature range from cold up to 50-200 C. below the normal operating temperature of the elements in the furnace. The layers of blocks may be staggered or angled to one another and also may include filling blocks below the expansion gaps to prevent molten metal running therethrough.
Patent GB-949799-A (GB)
Title: Process for the production of crystalline semi-conductor material
IPC: H01L21/00
Filed: 1961-03-30
Abstract: Crystalline semi-conductor material is produced by epitaxial deposition of one semiconductor material on to a dendritic crystal of the same or different semi-conductor material. The deposited material is obtained from a gas by chemical reaction.  The dendritic material may be pure or doped material and one or more pure or doped layers of the same or different conductivity types may be deposited if desired by using successive furnaces and reaction chambers. Deposition may be effected by the process described in Specification 914,042 in which some of the carrier crystal is first removed before deposition commences.  The semi-conductor material may consist of germanium, silicon or gallium arsenide.  The invention may be applied to the production of solid body micro circuits incorporating different circuit elements in one body.  Specification 861,135 also is referred to.
Patent GB-1374488-A (GB)
Title: Electric discharge lamps
IPC: H01J61/36
Filed: 1973-02-16
Abstract: 1374488 Sealing-glass compositions GENERAL ELECTRIC CO Ltd 16 Feb 1973 [14 March 1972] 11848/72 Heading C1M [Also in Division H1] A glass for sealing a corundum to a polycrystalline alumina tube is composed of, in molar percentages: 33À1% alumina, 51À4% calcium oxide, 9À5% magnesium oxide, 4À2% barium oxide and 1À8% boric acid.
Patent GB-125476-A (GB)
Title: Improvements in or pertaining to Explosive Shells or similar Bodies.
Inventor: HALE FREDERICK MARTEN
IPC: F42B12/20
Filed: 1916-08-22
Abstract: 125,476. Hale, F. M., and Dent, H. L. Aug. 22, 1916. Projectile fuses.-Relates to aerial bombs of the kind having a percussion fuse which becomes armed as the bomb drops by the action of a wind-vane device in releasing a detonator arranged in a tail-piece. According to the invention, the vane device 2 is mounted upon an externallyscrew-threaded portion of a comparatively short tail-piece 6, in the outer end of which is a plug 7 which can be removed for the insertion of the detonator 3. To indicate the presence of the detonator in the bomb, it may have an extension 16, adapted to project through the plug 7. This extension is pivotally connected to the detonator, and prevents it from rebounding when it has moved forward on impact. In the construction shown, the vane device 2 controls a spring-pressed L-shaped catch 9 which engages the detonator. The catch may be resilient, or in lieu of it one or more spring-pressed pins may be employed. Specifications 26764/11, 11394/13, and 2057/14 are referred to.
Patent GB-983676-A (GB)
Title: Improvements in process for removing phosphorus and sulphur from ores containing niobium and tantalum
IPC: C22B34/24
Filed: 1963-03-26
Abstract: Ores or ore concentrates containing tantalum or niobium or both, as minerals of the pyrochlore-microlite series are leached with an alkali metal hydroxide solution to produce water-soluble phosphorus and sulphur compounds. 20 to 40% w/w alkali metal hydroxide solution may be used for leaching at 75-95 DEG  C. for 2-8 hours.  The ores may first be roasted with alkali metal hydroxide and water (from 5 to 10% by weight of ore) at 300-700 DEG  C. for 1/2 to 1 hour. Examples relate to the leaching of a pyrochlore ore concentrate, with and without prior roasting, followed by washing with water, filtering, drying and igniting the residue. Values of the sulphur and phosphorus contents of the leach and leached ore are given.
Patent GB-1529115-A (GB)
Title: Oscillator circuit comprising integrated mis field-effect transistors
IPC: H03K3/011
Filed: 1977-03-22
Abstract: 1529115 Semiconductor or oscillator ITT INDUSTRIES Inc 22 March 1977 [30 March 1976] 11956/77 Heading H3T An MIS oscillator comprising an RS flip-flop whose active elements are integrated insulated gate FETs and whose inputs are each connected to ground via a capacitor CA, CB and are controlled by a respective load transistor T2, T3 each forming part of an inverter has its oscillation frequency temperature compensated by connecting the gates of the load transistors to the drain of an IGFET T 10 whose source is connected to ground, its gate to the supply voltage and its drain is also connected to a voltage source having an internal resistance of the same order of magnitude as is the drain source resistance of this transistor T10 when the oscillator is in use. The voltage source may be an ohmic voltage divider Rl, R2, R3, R4, the voltage being set by R4.
Patent GB-610983-A (GB)
Title: Improvements in electrical circuit breakers using compressed air blow-out
IPC: H01H33/12
Filed: 1946-04-18
Abstract: 610,983. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., WILCOX, T. W., and ROXBURGH, A. April 18, 1946, No. 11976. [Class 38 (v)] In a gas-blast circuit-breaker with a series isolator, a blast head 1 shunted by a non-linear resistance 2, has a chamber 3 with entries for the exhaust gases from two sets of interrupting contacts. This chamber has an outlet designed to direct the exhaust gases on to the isolating break 4 to assist in the extinction of any arc formed on breaking the residual current.
Patent GB-1276467-A (GB)
Title: Motor vehicle side protection arrangements
IPC: B60J5/04
Filed: 1971-04-29
Abstract: 1276467 Vehicle side collision protection FORD MOTOR CO Ltd 29 April 1971 [12 June 1970] 12034/71 Headings B7B and B7J A motor vehicle side protector panel 4 forming part of an external body panel 1 of a door or body side section of the vehicle is welded to other thinner parts 3, 5 of the panel 1 at its edges and is either joined indirectly via a lock mounted at one 6 of its ends and hinges at its other end 7, if part of a door, or is joined directly to substantially vertical body members if part of a body side section. If the side protector panel 4 forms part of a door its ends are welded to an internal pressing 2.
Patent GB-923813-A (GB)
Title: Improvements in or relating to the calcining of limestone and like materials
Inventor: ESBJORNSSON AKE
IPC: C04B2/10
Filed: 1960-04-05
Abstract: Limestone and material containing a major proportion of calcium carbonate, e.g. magnesianlimestone or chalk is calcined in a shaft kiln by introducing water into a hot combustible gas, produced by gasification of a mineral fuel oil or producer-gas from coal, so as to produce a mixture of combustible gas and superheated steam which is introduced into the calcining zone of the kiln for combustion with air also fed into that zone.  The weight of water may be equal to that of hot combustible gas.  Fig. 1 is a vertical section of a kiln, which may be circular in cross-section, and Fig. 2 is a horizontal section of Fig. 1. Water jets 7, which may be pressure nozzles and may be capable of individual manual withdrawal, discharge into duct 5, which may be external to the kiln, connected to oil gasifier 6 which may produce a gas from heavy fuel oil at e.g. 1250-1500 DEG C. The superheated steam/gas mixture formed, e.g. containing 21/H2O and at 680 DEG C., is fed to ports 4 and via 8 to ports 3. <PICT:0923813/III/1> <PICT:0923813/III/2> Combustion at, e.g. 1940 DEG C, occurs in air preheated chamber 2 into which the calcining zone 1 discharges.  9 and 10 are thermocouples.  Fig. 3 (not shown) illustrates a kiln with a nozzle oil gasifier.
Patent GB-1499357-A (GB)
Title: Method of preparation of insoluble biologically active compounds
IPC: C12N11/08
Filed: 1976-03-25
Abstract: 1499357 Biologically active insoluble compounds; oxidizing polymers CESKOSLOVENSKA AKADEMIE VED 25 March 1976 [27 March 1975] 12042/76 Headings C3H and C3P In a method of making biologically active insoluble compounds on a carrier containing in its side chain p-phenylene-diamine skeleton, a polymer of formula in which R 1  is hydrogen or CH 3 , R 2  is C 1-6  alkyl and x is 1-4, is oxidized in the presence of a soluble biologically active compound containing a primary amino group. Preferably the soluble biologically active compound is selected from enzymes, coenzymes, inhibitors of enzymes, hormones and antigens. In examples: (1) ethylene glycol monomethacrylate, ethylene glycol dimethacrylate and N-ethyl-N-(2-methacroylethyl) - N<SP>1</SP> - acetyl - p - phenylenediamine are heterogeneously suspension polymerized and oxidized in the presence of trypsin, (2) a similar carrier was oxidized in the presence of glucose oxidase, (3) chymotrypsin is bonded to an analogous polymer base, (5) pepsin is bonded to the polymer of Example (3), (6) chymotrypsinogen is bonded to the polymer of Example (3). Example 9 describes the polymerization of cyclohexanol, lauryl alcohol, ethylene glycol monomethacrylate, N-ethyl-N- (2-methacroylethyl) - N - acetyl - p - phenylenediamine and ethyleneglycoldimethacrylate and azobis-isobutyronitrile on to which glucose oxidase is bonded.
Patent GB-549169-A (GB)
Title: Improvements in window operating mechanism
IPC: E05F11/38
Filed: 1941-09-19
Abstract: 549,169. Window-operating mechanism. TRICO PRODUCTS CORPORATION. Sept. 19, 1941, No. 12071. Convention date, Nov. 22, 1940. [Class 20 (iii)] Window closing mechanism is locked against manual operation. Fluid pressure is operative to raise or lower the window through rack 12, pinion 13 and arm 3, and also renders ineffective a locking pawl 17 in a subsidiary cylinder 18. In a modification the pinion 13 carries laterally projecting pins for releasing rollers which otherwise lock a disc carried by the arm 3. In this construction manual operation is prevented in both directions.
Patent GB-1339473-A (GB)
Title: Electromagnetic brake
IPC: B61H7/08
Filed: 1971-04-29
Abstract: 1339473 Electromagnetically operated vehicle-mounted rail brakes SOCIMI-SOC CONSTRUZIONIINDUSTRIALI MILANO SpA 29 April 1971 [30 May 1970] 12116/71 Heading F2E An electromagnetic track brake 20 has a plurality of pad-like members 25 intended to slide on the running rail 23 when the brake is in use. Each member 25 includes a spreader block 30 housed with clearances 31 between the two portions of the winding 27, two lateral jaws 28, and two removable sliding pads 32 separated by a non-magnetic plate 35 to ensure that the magnetic field passes through the rail head. Each pad 32 has a semi-cylindrical projection 39 at one end and a corresponding cavity 40 at the other end, so that in use the pads are effectively hinged together longitudinally.  Transverse inset members 42 of frictional material, e.g. organic or sintered, may be accommodated in the pads 32. The non- magnetic plate 35 may be of the same frictional material. Each of the end members 36, which are fixed to the shielding plates 37 and have no clearances relative to the winding 27, may be extended longitudinally beyond the energizing coil 26 and the greater portion of the bottom face of the extension consists of frictional material. In operation, when the winding 27 is energized, and the members 25 are in contact with the head of rail 23 by their pads 32, the clearances 31 and "hinge" connections 39, 40, ensure that the pads adapt themselves closely to any irregularity of surface of the rail head.
Patent GB-259139-A (GB)
Title: Improvements in door fasteners
IPC: E05B17/20
Filed: 1926-05-11
Abstract: 259,139. Kennedy, M. May 11, 1926. Turn-bolt fastenings are constructed to work in a slot 2 in a door 3 and engage a slot 4 in the door-post 5 and to be locked by a pin 9 passing through a slot 8 in the door-post and a hole 7 in the engaging end of the turnbutton. No casing or mounting plate or springs are employed. The pin is anchored to the door by a chain 10.
Patent GB-1415632-A (GB)
Title: Side wall of railway freight waggons
IPC: B61D19/00
Filed: 1974-03-19
Abstract: 1415632 Railway freight wagons WAGGON UNION GmbH 19 March 1974 [13 April 1973] 12121/74 Heading B7L  A railway freight wagon includes a side wall having an upper longitudinal beam 2, a lower longitudinal beam 3 and an upright post 4 interconnecting the beams intermediate their ends, the post being pivotally connected to the beams so as to permit relative movement therebetween. Brackets 5, 7 fastened to the beams support sleeves 6, 8 passing through apertures in the post 4. Bolts 9, 10 secure the post in position and permit the upper longitudinal beam and roof to move relative to the lower longitudinal beam and under-frame when buffer impact occurs A seal 11 and cover strip 12 are provided.
Patent GB-650000-A (GB)
Title: Improvements in and relating to automatic controls for electric heaters and other purposes
IPC: H05B1/02
Filed: 1948-05-03
Abstract: 650,000. Pressure-actuation of switches. MURRAY, W. May 3, 1948, No. 12141. [Class 38(v)]  A. diaphragm 6 which is moved by fluid pressure to actuate a micro-switch 15 is provided with a central zone which is less flexible than the remainder of the diaphragm. This may be attained by making the central zone of thicker material than the remainder, or by fixing a ring to the diaphragm and connecting the ring to the centre by stiff spokes, or by fixing a stiffening plate to the diaphragm. The area of the less flexible portion is from one-eighth to a half of the area of the remainder of the diaphragm, and the thickness of the flexible outer zone is less than 15 mils. Fig. 1 shows a part of a dish washing machine in which the switch 15 controls the water heaters in accordance with the height of water in the tank 1 which communicates with a chamber 10 through pipes 11, 12. Chambers 10 and 4 are separated by gauze 9. The switch is adjusted by the diaphragm 6 which is subjected to the fluid pressure in the chambers 4, 10. The diaphragm is stiffened over its central portion by an attached disc 17. The diaphragm and disc may be made of copper or beryllium. The Specification describes and shows a known circuit for the heater of a washing machine and including the control device shown in Fig. 2. Specification 317,711, [Class 38(v)], 386,717 and 419,917 are referred to.
Patent GB-913997-A (GB)
Title: Improvements in and relating to the production of monovinylacetylene
IPC: C07C2/38
Filed: 1959-04-10
Abstract: Monovinylacetylene is prepared by absorbing acetylene in an agitated catalyst comprising two liquid phases one a solution of cuprous chloride the other an inert solvent for monovinylacetylene immiscible with the other phase, withdrawing a portion of the catalyst, separating the layers, recovering monovinylacetylene from the solvent and returning the solvent and cuprous chloride solution to the reaction vessel.  The cuprous chloride may be dissolved in water, e.g. with added potassium chloride, or a carboxylic acid amide such as dimethylformamide containing monomethyl-, monoethyl- or diethylamine hydrochloride.  Suitable solvents are hydrocarbons, halogenated hydrocarbons, ethers, higher alcohols, ketones and esters; specified are methylene dichloride, n-pentane, n-hexane, tetrahydronaphthalene, monobutyl ether of diethylene glycol and kerosene.  The volume ratio of cuprous chloride solution to inert solvent may be from 1 : 1 to 1 : 5.  Temperatures of 40-90 DEG C. and a pressure of 1-30 atmospheres to maintain liquid phase may be used. U.S.A.  Specifications 1,811,959 and 2,048,838 are referred to.
Patent GB-1099506-A (GB)
Title: Improvements relating to speed variation control means
Inventor: KILNER STANLEY RICHARD
IPC: H01H9/06
Filed: 1965-03-23
Abstract: 1,099,506. Drilling machine details. STANLEY-BRIDGES Ltd. and S. R. KILNER. June 23, 1966 [March 23, 1965], No. 12343/65. Heading B3C. [Also in Divisions B5 and H1] A power tool, e.g. a portable drill, having a continuously-variable speed control circuit has a rotary control knob part of which is visible through an opening in the tool casing, the periphery of the knob being divided circumferentially into a number of readily-identifiable sectors representing different speeds for different applications. The suitable speed is selected by bringing any part of the appropriate sector into view in the opening. The sectors may be coloured to represent different materials to be worked.